Cooperativa San Carlos first started in 1980 made possible by agrarian reforms that were implemented by the El Salvadorian Government which redistributed land to small farmers.

The wet mill and patios for the processing the coffee is situated at 1400masl up the mountain providing a perfect location for drying the coffees as it is situated facing north/north east which is the direction of the prevailing winds which helps to maintain stable temperatures for drying coffees. San Carlos Dos is part of the Blue Harvest Program started in 2016 and is run by Catholic Relief Services which looks at helping to address water tables and areas highlighted for water shortages in Central America.